Open Game License
The Open Game License text begins with a specific legal promise. It states that contributors grant users a perpetual, worldwide, royalty-free license to use the defined content. This agreement hinges on two distinct categories of material within any game system. The first category is Open Game Content. This term covers the actual game mechanics and includes methods, procedures, processes, and routines. It also encompasses translations and derivative works under copyright law. The second category is Product Identity. This definition lists product names, logos, trade dress, creatures, characters, stories, plots, themes, dialogue, artwork, symbols, designs, and locations. Using another company's Product Identity without permission constitutes a breach of the licensing agreement.
Wizards of the Coast published version 1.0 of this license in 2000. Ryan Dancey spearheaded this initiative to allow third-party publishers to create compatible material for Dungeons & Dragons. The System Reference Document included basic rules such as classes, monsters, spells, and magic items. Dancey modeled the approach on open-source licenses used in the software industry. He argued that embracing these ideas would spur a huge surge in independent content creation. Academics Benoît Demil and Xavier Lecocq noted a business goal was to have competitors institutionalize a standardized rule system. They observed that if more people used the same system, players could migrate between products without learning new rules. The strategy aimed to establish d20 as a recognizable trademark similar to VHS or DVD.
In June 2008, Wizards of the Coast transitioned to a new license called the Game System License. This new agreement was incompatible with the previous Open Game License. Greg Tito wrote for The Escapist in 2011 that this change took away freedoms the industry had come to expect. Andy Collins served as Design & Development Manager around the release of fourth edition. He recalled arguing hard to retain an open license like the one from the third edition. Collins stated that without such a license, Wizards risked leaving behind customers who viewed openness as part of the game. In hindsight, he wondered if it might have been better to let the original license die rather than create a restrictive alternative.
Paizo announced a new Open RPG Creative License as a direct response to the reported changes. They stated this system-agnostic license would not be owned by Paizo or any other publisher. Additional publishers such as Kobold Press, Chaosium, Green Ronin, and Rogue Genius Games joined the development process. Free League Publishing also announced two licenses for its Year Zero game system and Dragonbane. Eric Law noted that large publishers like Paizo and Green Ronin faced pressure to update their business models quickly. Christian Hoffer wrote for ComicBook.com that the intent was to force compliance with the new agreement. Kickstarter negotiated with Wizards of the Coast to lower royalty amounts for creators using their platform.
Common questions
What is the Open Game License and what does it promise to users?
The Open Game License grants users a perpetual, worldwide, royalty-free license to use defined content. This legal agreement covers two distinct categories of material within any game system.
When did Wizards of the Coast publish version 1.0 of the Open Game License?
Wizards of the Coast published version 1.0 of this license in 2000. Ryan Dancey spearheaded this initiative to allow third-party publishers to create compatible material for Dungeons & Dragons.
Why did Paizo announce a new Open RPG Creative License in response to changes in 2008?
Paizo announced a new Open RPG Creative License as a direct response to reported changes that made the previous license incompatible. The intent was to force compliance with the new agreement while maintaining a system-agnostic license not owned by any single publisher.
Who wrote about the negative impact of the transition from the Open Game License to the Game System License?
Greg Tito wrote for The Escapist in 2011 that this change took away freedoms the industry had come to expect. He argued that the shift removed essential rights previously granted under the original framework.
All sources
84 references cited across the entry
- 1webSystem Reference Document 5.02016
- 2webThe Most Dangerous Column in GamingRyan Dancey — Wizards of the Coast — 2002-02-28
- 3webThe Open Game License as I See ItMonte Cook
- 4webDungeons & Dragons to go open-source?Andrew Leonard — March 10, 2000
- 5journalThe Rise and Fall of an Open Business ModelBenoît Demil et al. — 2014-05-15
- 7webOpen Game License: Frequently Asked Questions (Version 2.0)Wizards of the Coast — January 26, 2004
- 8webDungeons & Dragons 4th Edition System Reference DocumentWizards of the Coast — 2009-02-27
- 9webThe State of D&D: PresentGreg Tito — 28 December 2011
- 10webNo '4th Edition d20 STL'November 13, 2007
- 11webD&D 4th Edition Game System LicenseWizards of the Coast
- 12webThe story of Pathfinder, Dungeons & Dragon's most popular offspringCharlie Hall — 2016-08-01
- 15webSystems Reference DocumentWizards of the Coast — May 5, 2016
- 16webWizards of the Coast Puts Out New Dungeons and Dragons Open License With Forgotten Realms Content The EscapistMarshall Lemon — January 12, 2016
- 18webYou Can Now Publish Your 'D&D' Adventures Through The DM GuildChris Sims — January 13, 2016
- 21webDungeons & Dragons basically has DLC now, and it's excellentCharlie Hall — 2020-01-13
- 22webDungeons and Dragons brings huge changes to fifth edition rules under One D&D initiativeXavier Johnson — 2022-08-18
- 23webRumor: One D&D Might Be Killing Third-Party Homebrew ContentEric Law — 2022-11-14
- 24webWizards Clarifies One D&D Third Party SupportTyler Chancey — November 22, 2022
- 25webDungeons & Dragons Clarifies Support for Third-Party Material as New Edition Draws NearNovember 21, 2022
- 26webDungeons and Dragons: 'OpenDnD' Trends on Twitter Amid Homebrew Rumor ControversyEric Law — December 19, 2022
- 27webDungeons & Dragons fans concerned One D&D will spell disaster for custom contentDecember 19, 2022
- 28webThe Dungeons & Dragons Open Gaming License Isn't Going AnywhereDecember 21, 2022
- 29webOGLs, SRDs, & One D&DDecember 21, 2022
- 31webDungeons and Dragons Releases Statement on how Homebrew Content Works for One D&DEric Law — December 21, 2022
- 32webDungeons & Dragons' New License Tightens Its Grip on CompetitionJanuary 5, 2023
- 33webRyan Dancey -- Hasbro Cannot Deathorize OGLRuss Morrissey — January 5, 2023
- 34webD&D will move to a Creative Commons license, requests feedback on a new OGLCharlie Hall — 2023-01-19
- 35newsThe D&D Open Game License controversy, explainedEdwin Evans-Thirlwell — January 19, 2023
- 36webD&D reveals new licensing terms amid community backlashJess Weatherbed — 2023-01-20
- 39webD&D won't change the OGL, handing fans and third-party publishers a massive victoryCharlie Hall — January 27, 2023
- 41webDungeons & Dragons Scraps Plans to Update Its Open Game LicenseJanuary 27, 2023
- 42webSystem Reference Document 5.1Wizards of the Coast — January 27, 2023
- 43webComing April 22: Publish Your Own Creations Using the 2024 Core RulesApril 16, 2025
- 44webNew D&D Errata Revise 2024 5e Rules Ahead of SRD 5.2 UpdateAmanda Kay Oaks — April 16, 2025
- 45webWizards of the Coast Updates 'D&D' System Reference DocumentJeffrey Dohm-Sanchez — April 23, 2025
- 47webThe Open Gaming Foundation: Frequently Asked QuestionsWizards of the Coast — 2004-01-26
- 48webNo D&D 4E for Paizo?!?John Baichtal — Conde Nast — March 25, 2008
- 49webFull Circle: A History of the Old School RevivalJames Maliszewski — August 20, 2009
- 50journalIntellectual Property and Tabletop GamesChristopher B. Seaman et al. — 2022
- 51webBeware the Gifts of Dragons: How D&D's Open Gaming License May Have Become a Trap for CreatorsKit Walsh — 2023-01-10
- 52webRPG fans irate as D&D tries to shut its "open" game licenseKyle Orland — 2023-01-11
- 54webDungeons and Dragons: Leaked OGL Reveals Plans for Homebrew in One D&DEric Law — 2023-01-05
- 55web'Dungeons & Dragons' OGL 1.1 FurorJanuary 11, 2023
- 56webDungeons & Dragons Looks to Clamp Down on Competition With New OGLJanuary 5, 2023
- 57webD&D's stricter licensing rules might impact some beloved RPGsCharlie Hall — 2023-01-05
- 58webWizards of the Coast OGL Change Draws Ire From Creators and Fans Alike: 'It's Not Right'Travis Northup — 2023-01-06
- 59webDungeons and Dragons Is Jeopardizing Its Greatest Strength: Its UbiquityJanuary 12, 2023
- 61newsDungeons & Dragons & fear & loathingJanuary 13, 2023
- 62webD&D content creators outraged over licensing changes, demand the game remain "open"J. J. Nattrass — 2023-01-09
- 63webD&D's community is up in arms over a controversial changeCorey Plante
- 65webDungeons & Dragons Fans Rally Behind #OpenDnD, Demanding WotC Revoke OGL 1.1Julia Anderson — 2023-01-09
- 66webIndie TTRPG Creators Sign OGL 1.1 Open Letter2023-01-09
- 67webDungeons & Dragons content creators are fighting to protect their livelihoodsAmanda Silberling — January 12, 2023
- 68webMore than 26,000 people sign open letter condemning new D&D licenseBenjamin Abbott — January 10, 2023
- 69webDungeons & Dragons Fans Launch D&D Beyond Cancellation Campaign Over OGL ChangesJanuary 13, 2023
- 70webWizards of the Coast Cancels OGL Announcement After Online IreJanuary 12, 2023
- 71webDUNGEONS & DRAGONS TV Show Announced Amid Controversy2023-01-10
- 72webDungeons and Dragons Publisher Kobold Press Making New Roleplaying SystemEric Law — 2023-01-10
- 73webMatt Colville Announces Plans for New RPG as Dungeons & Dragons OGL Furor ContinuesJanuary 10, 2023
- 74webPaizo Announces Its Own Gaming License Amid D&D OGL ControversyJanuary 12, 2023
- 75webPaizo Addresses Pathfinder's Future, Announces New System-Neutral Open RPG LicenseJanuary 12, 2023
- 77webAn Update on the Open Game License (OGL)Wizards of the Coast — January 13, 2023
- 79webWizards of the Coast Breaks Their Silence on the Dungeons & Dragons OGLJanuary 13, 2023
- 80webD&D maker backs off new licensing rules that led to fan revoltCharlie Hall — January 13, 2023
- 81webD&D maker still wants to revoke earlier versions of "open" gaming licenseKyle Orland — January 20, 2023
- 82webWotC Folds: OGL 1.0a AbidesJanuary 27, 2023
- 83webOGL 1.0a & Creative CommonsKyle Brink — January 27, 2023
- 84webThe OGL is dead. Long live the OGL.Lin Codega — May 9, 2024